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Avoid port 6000 in pytorch #178

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Jul 2, 2025
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Avoid port 6000 in pytorch #178

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2 changes: 1 addition & 1 deletion docs/software/ml/pytorch.md
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Expand Up @@ -337,7 +337,7 @@ export OMP_NUM_THREADS=8 # (2)!
# PyTorch environment variables #
#################################
export MASTER_ADDR=$(hostname) # (3)!
export MASTER_PORT=6000
export MASTER_PORT=29500
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@bcumming bcumming Jul 2, 2025

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How about adding a comment to this line about why?

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@henrique henrique Jul 2, 2025

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+1 @bcumming, wording? something like:
Please avoid common ports like 6000, 60000 or <1024 which may be used by another service and could cause a silent tcp socket timeout.
?

export WORLD_SIZE=$SLURM_NPROCS
export TORCH_NCCL_ASYNC_ERROR_HANDLING=1 # (4)!
export TRITON_HOME=/dev/shm/ # (5)!
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